Rework symbol visibility for easier maintenance

  Save in a few special cases, _X_EXPORT should not be used in C source
files. Instead, it should be used in headers, and the proper C source
include that header. Some special cases are symbols that need to be
shared between modules, but not expected to be used by external drivers,
and symbols that are accessible via LoaderSymbol/dlopen.

  This patch also adds conditionally some new sdk header files, depending
on extensions enabled. These files were added to match pattern for
other extensions/modules, that is, have the headers "deciding" symbol
visibility in the sdk. These headers are:
o Xext/panoramiXsrv.h, Xext/panoramiX.h
o fbpict.h (unconditionally)
o vidmodeproc.h
o mioverlay.h (unconditionally, used only by xaa)
o xfixes.h (unconditionally, symbols required by dri2)

  LoaderSymbol and similar functions now don't have different prototypes,
in loaderProcs.h and xf86Module.h, so that both headers can be included,
without the need of defining IN_LOADER.

  xf86NewInputDevice() device prototype readded to xf86Xinput.h, but
not exported (and with a comment about it).

1 files changed, 17 insertions, 17 deletions

diff --git a/include/gc.h b/include/gc.h
index bf4c268a8..e75cc5e83 100644
--- a/include/gc.h
+++ b/include/gc.h
@@ -84,16 +84,16 @@ typedef struct _GCInterest *GCInterestPtr;
 typedef struct _GC    *GCPtr;
 typedef struct _GCOps *GCOpsPtr;
 
-extern void ValidateGC(
+extern _X_EXPORT void ValidateGC(
     DrawablePtr /*pDraw*/,
     GCPtr /*pGC*/);
 
-extern int ChangeGC(
+extern _X_EXPORT int ChangeGC(
     GCPtr/*pGC*/,
     BITS32 /*mask*/,
     XID* /*pval*/);
 
-extern int DoChangeGC(
+extern _X_EXPORT int DoChangeGC(
     GCPtr/*pGC*/,
     BITS32 /*mask*/,
     XID* /*pval*/,
@@ -104,14 +104,14 @@ typedef union {
     pointer ptr;
 } ChangeGCVal, *ChangeGCValPtr;
 
-extern int dixChangeGC(
+extern _X_EXPORT int dixChangeGC(
     ClientPtr /*client*/,
     GCPtr /*pGC*/,
     BITS32 /*mask*/,
     CARD32 * /*pval*/,
     ChangeGCValPtr /*pCGCV*/);
 
-extern GCPtr CreateGC(
+extern _X_EXPORT GCPtr CreateGC(
     DrawablePtr /*pDrawable*/,
     BITS32 /*mask*/,
     XID* /*pval*/,
@@ -119,43 +119,43 @@ extern GCPtr CreateGC(
     XID /*gcid*/,
     ClientPtr /*client*/);
 
-extern int CopyGC(
+extern _X_EXPORT int CopyGC(
     GCPtr/*pgcSrc*/,
     GCPtr/*pgcDst*/,
     BITS32 /*mask*/);
 
-extern int FreeGC(
+extern _X_EXPORT int FreeGC(
     pointer /*pGC*/,
     XID /*gid*/);
 
-extern GCPtr CreateScratchGC(
+extern _X_EXPORT GCPtr CreateScratchGC(
     ScreenPtr /*pScreen*/,
     unsigned /*depth*/);
 
-extern void FreeGCperDepth(
+extern _X_EXPORT void FreeGCperDepth(
     int /*screenNum*/);
 
-extern Bool CreateGCperDepth(
+extern _X_EXPORT Bool CreateGCperDepth(
     int /*screenNum*/);
 
-extern Bool CreateDefaultStipple(
+extern _X_EXPORT Bool CreateDefaultStipple(
     int /*screenNum*/);
 
-extern void FreeDefaultStipple(
+extern _X_EXPORT void FreeDefaultStipple(
     int /*screenNum*/);
 
-extern int SetDashes(
+extern _X_EXPORT int SetDashes(
     GCPtr /*pGC*/,
     unsigned /*offset*/,
     unsigned /*ndash*/,
     unsigned char* /*pdash*/);
 
-extern int VerifyRectOrder(
+extern _X_EXPORT int VerifyRectOrder(
     int /*nrects*/,
     xRectangle* /*prects*/,
     int /*ordering*/);
 
-extern int SetClipRects(
+extern _X_EXPORT int SetClipRects(
     GCPtr /*pGC*/,
     int /*xOrigin*/,
     int /*yOrigin*/,
@@ -163,11 +163,11 @@ extern int SetClipRects(
     xRectangle* /*prects*/,
     int /*ordering*/);
 
-extern GCPtr GetScratchGC(
+extern _X_EXPORT GCPtr GetScratchGC(
     unsigned /*depth*/,
     ScreenPtr /*pScreen*/);
 
-extern void FreeScratchGC(
+extern _X_EXPORT void FreeScratchGC(
     GCPtr /*pGC*/);
 
 #endif /* GC_H */